Where did you hear that Nokia gave access to the entire Maemo source code to stskeeps? Large chunks of Maemo are open and available (or superceded by the updated Meego versions), but other parts remain closed (whether due to 3rd party restrictions, or Nokia not wanting to spend the time/money required to clean up & vet code) and require working around. I've not heard of any of these being made accessible to anyone outside Nokia though (and if they were, they'd almost certainly only be made so under stringent NDA conditions).